<template>
  <div class="login-container">
    <div class="box" />
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
      <div class="title-container">
        <h3 class="title">
          <img src="@/assets/common/login-logo.png" alt="">
        </h3>
      </div>

      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <!-- auto-complete 是自动补全表单  on 开启自动补全 off是关闭自动补全 -->
        <el-input
          ref="mobile"
          v-model="loginForm.mobile"
          placeholder="请输入手机号"
          name="mobile"
          type="text"
          tabindex="1"
          auto-complete="off"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="请输入密码"
          name="password"
          tabindex="2"
          auto-complete="off"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button class="loginBtn" :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.prevent="handleLogin">登录</el-button>

      <div class="tips">
        <span style="margin-right:20px;">账号: 13800000002</span>
        <span>密码: 123456</span>
      </div>

    </el-form>
  </div>
</template>
<script>
import { validMobile } from '@/utils/validate'
// import { reqLogin } from '@/api/user'
export default {
  name: 'Login',
  data() {
    // 自定义手机号校验规则
    const checkMobile = (rule, value, cb) => {
      if (validMobile(value)) {
        cb()
      } else {
        cb(new Error('请输入合法的手机号'))
      }
    }
    return {
      loginForm: {
        mobile: '13800000002',
        password: '123456'
      },
      loginRules: {
        // 手机号规则 不能为空 合法的手机号
        mobile: [
          { required: true, message: '账号不能为空', trigger: ['change', 'blur'] },
          // { pattern: /^1[3-9]\d{9}$/, message: '请输入合法的手机号', trigger: ['change', 'blur'] }
          { validator: checkMobile, trigger: ['change', 'blur'] }
        ],
        // 密码规则 不能为空  6-16位
        password: [
          { required: true, message: '密码不能为空', trigger: ['change', 'blur'] },
          { min: 6, max: 16, message: '密码长度要求在6-16位之间', trigger: ['change', 'blur'] }
        ]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    // 切换明文和密文显示密码的方法
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      // 1. 表单预校验
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          // 立马设置loading为true
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm).then(res => {
            console.log(res)
            // 跳转到首页
            this.$router.push('/')
          }).catch(() => {
            console.log('失败了')
          }).finally(() => {
            console.log('finally不论是成功还是失败都会执行')
            // 统一关闭loading
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:blue;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.9); // 输入登录表单的背景色
    border-radius: 5px;
    color: #454545;
  }
  // 校验提示文本样式
  .el-form-item__error {
    color: #fff;
    font-size: 14px;
  }
  // 登录按钮的样式
  .loginBtn {
    background: #407ffe;
    height: 64px;
    line-height: 32px;
    font-size: 24px;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;
  background-image: url('~@/assets/common/login.jpg'); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>

<style lang="scss" scoped>
// less 和 scss区别 只要会less  无缝切换到scss上 (区别变量的定义 混入 函数)
// sass 也是css预处理器 格式 不允许有 {} 和 ;
// stylus css预处理器 格式 不允许有 {} 和 ;
// less /deep/ scss/sass ::v-deep css >>>
/* .login-container >>> .el-form-item__content{
  background-color: red !important;
} */
/* sass语法 */
/* .login-container
  .box
    width: 200px
    height: 200px
    background-color: green */
/* .login-container{
  .box {
    width: 200px;
    height: 200px;
    background-color: green;
  }
} */
</style>
<style lang="scss" scoped>
 .box {
      width: 200px;
      height: 200px;
      background-color: red;
      &:hover {
        background-color: pink;
      }
    }
</style>
